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9 pages in this section.
How CTEs, window functions, LATERAL joins, and recursive queries fit together as one declarative toolkit for expressing complex logic inside a single SQL statement instead of reaching for application code.
Learn advanced SQL techniques with 9 examples, including CTE pipelines, window functions like ROW_NUMBER and LAG, and filtered aggregates.
Improve SQL query readability with CTEs. Learn to identify and fix common performance pitfalls, including planner behavior and recursion traps.
Learn to use SQL window functions like ROW_NUMBER and LAG for running aggregates in PostgreSQL 18, with examples and common pitfalls.
Master recursive CTEs in PostgreSQL 18 for hierarchies and graph traversals. Learn production-ready patterns, avoid common pitfalls, and optimize performance.
Learn advanced SQL best practices for clarity, performance, and safety. Optimize complex queries, use EXPLAIN, and manage dynamic SQL risks.
A single-page roundup of every highlight bullet from the 8 pages in the Advanced SQL section, grouped by source page so you can scan all 42 takeaways without opening each article individually.